Diagnosis. In comparison with other genera of Astieae , males with disctinctive abdominal scutum and anterolateral process on each maxilla. Chelicerae fissidentate or (rarely) pluridentate. Embolus rather massive, retrolaterally curved, dagger- or sabre-like. Tegulum with protuberance. Both sexes with five and two pairs of ventrolateral spines on tibiae and metatarsi, respectively.